Question: How many times is the date of birth listed as 1-1-990 for Bi Sheng?
Paraphrase: How often is the birth date of Bi Sheng listed as 1-1-990?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q200662 p:P569 ?s . ?s ps:P569 ?x filter(contains(?x , '990-1-1')) . ?s pq:P31 ?value}